As promised I looked again, unfortunately I've yet to find in Foucart where these "situations" came from other than the "war archives."
Daniel Lamblat just sent me a scan of one of the orginal muster sheets, and they are indeed difficult to interpret. I'm told depending on when, where and by whom the muster was taken (or given to) a great deal of detail may be lost. It would not be uncommon for staff to annotate these documents before archiving.
I'm also told by a reliable researcher/author, that situations found in the Corps' carton might differ from those in a Regiment's carton, or the carton for a particular period. You see this in the detail (or lack of detail) in the situation for the Reserve Cavalry compared to those of the individual Dragoon Divisions. Having never been blessed with seeing these archives I must yield to his knowledge.
For the Napoleon-Series, my humble contribution is only to transcribed and translate what is in Foucart...however, I'll annotate my own notes!
Thanks again for your help.